isomaltose is a disaccharide which can beobtained by enzymatic hydrolysis ofamylopectin. Deduce the structure ofisomaltose from the following data:a. The hydrolysis of 1 mole of isomaltose withacid or alpha-glucosidase yields 2 moles of D-glucose.b. Isomaltose is a reducing sugarc. Isomaltose is oxidized with bromine waterto isomaltonic acid. Insomaltonic acidmethylation followed by hydrolysis yielded2,3,4,6-tetra-O-methyl-D-glucose and 2,3,4,5-tetra-O-methyl-D-gluconate acid.d. Isomaltose methylation itself followed byhydrolysis to produce 2,3,4,6-tetra-O-methyl-D-glucose and 2,3,4-tri-O-methyl-D-glucose.Describe according to the four points above

Disaccharide sugars are the ones that are formed when two monosaccharides are joined by glycosidic…

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isomaltose is a disaccharide which can be obtained by enzymatic hydrolysis of amylopectin. Deduce the structure of isomaltose from the following data:

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Question

isomaltose is a disaccharide which can be
obtained by enzymatic hydrolysis of
amylopectin. Deduce the structure of
isomaltose from the following data:
a. The hydrolysis of 1 mole of isomaltose with
acid or alpha-glucosidase yields 2 moles of D-
glucose.
b. Isomaltose is a reducing sugar
c. Isomaltose is oxidized with bromine water
to isomaltonic acid. Insomaltonic acid
methylation followed by hydrolysis yielded
2,3,4,6-tetra-O-methyl-D-glucose and 2,3,4,5-
tetra-O-methyl-D-gluconate acid.
d. Isomaltose methylation itself followed by
hydrolysis to produce 2,3,4,6-tetra-O-methyl-
D-glucose and 2,3,4-tri-O-methyl-D-glucose.
Describe according to the four points above

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